Enzotech’s CNB series is the world’s first complete one-piece forged copper Northbridge heatsink with no interface or gaps. It gives you the best thermal performance possible without using a fan. The chipset is cooled to Optimum operating temperature with no fan noise or vibration. CNB-S1L can also be used for some Southbridge or VGA applications.

Features

• Multiple push pin locations for universal mounting on various board assembly (hole to hole distance 54.6mm and 59mm)
• Formed of pure copper for enhanced thermal conductivity
• Excellent surface flatness minimizes the interface between the heat source and heat sink

Dimension:	36 x 36 x 11.6(H) mm
Weight:	50g
Material:	Forged copper 1100
Base Flatness:	Polished mirror machined ~0.0003" to 0.0004"per inch

11-07-2010
Reviewer: ()
Other companies need to follow this example. This is quite the efficient little beast. Have it on my north bridge and my south bridge. Dropped temp from 51c to 41c (outstanding). South bridge went from 42c to 33c again outstanding. The best I have found. Just for added viewing pleasure I took the blue fan off of the cheaper crap heatsink I bought and adhered to this heatsink. Now it looks cool and works phenomenally. KICKASS!!!!!

11-29-2008
Reviewer: doc333 (1)
Modified this heatsink for use on an Intel southbridge chip by cutting off the mounting screws and it worked great...got an 8C temp drop from the taller Microcool aluminum heatsink.